There were even a handful of Chinese fighting with Southern Zouave Regiments such as the Louisiana Avegno Zouaves.
"…I stepped ashore at the wharf at Mandeville, and cast my eyes upon as cosmopolitan a body of soldiers as there existed upon the face of God's earth. There were Frenchmen, Spaniards, Mexicans, Dagoes, Germans, Chinese, Irishmen, and, in fact, persons of every clime known to geographers or travellers of that day." - John McGrath, 1903